国际沙棘研究与开发
國際沙棘研究與開髮
국제사극연구여개발
THE GLOBAL SEABUCKTHORN RESEARCH AND DEVELOPMENT
2011年
4期
36-41,46
,共7页
何正祥%刘广全%王鸿喆%孙克
何正祥%劉廣全%王鴻喆%孫剋
하정상%류엄전%왕홍철%손극
黄土高原中部%主要乡土树种%生长过程
黃土高原中部%主要鄉土樹種%生長過程
황토고원중부%주요향토수충%생장과정
the middle Loess Plateau%main native tree species%growth processing
本文对黄土高原中部油松、侧柏、刺槐、沙棘、胡颓子和火炬树等乡土树种树高、胸径及材积生长量进行了测定，结果表明：研究区树高生长曲线分两种类型，以油松、侧柏等人工实生林为一种类型，即满足“慢一快一缓慢一稳降”生长规律，沙棘、火炬树等萌蘖林开始生长较快，之后逐渐降低并趋于稳定。6树种树高平均生长量为0．4518±0．2763m，刺槐的最高，侧柏的最低；连年生长量平均值为0．3190±0．1358m，刺槐的最高，胡颓子的最低。6树种胸径平均生长量相对稳定，平均生长量为0．4170±0．1714cm，刺槐的最高，是侧柏的3倍多，阔叶树大于针叶树，实生林的较高；胸径连年生长量平均值为0．3723±0．1205cm，油松的最大，侧柏的最小；随着年龄的增长，材积平均生长量和连年生长量都呈逐渐增加的趋势，6树种材积平均生长量平均值为3．1254×10^4±4．8827×10^-4m^3，刺槐的最大，侧柏的最小，二者相差20倍左右；材积连年生长量平均值为6．8956×10^4±10．1233×10^-4m^3，刺槐分别是油松和侧柏的2．38和15．34倍。生长量大小除遗传因素外，主要是降水量的影响。
本文對黃土高原中部油鬆、側柏、刺槐、沙棘、鬍頹子和火炬樹等鄉土樹種樹高、胸徑及材積生長量進行瞭測定，結果錶明：研究區樹高生長麯線分兩種類型，以油鬆、側柏等人工實生林為一種類型，即滿足“慢一快一緩慢一穩降”生長規律，沙棘、火炬樹等萌蘗林開始生長較快，之後逐漸降低併趨于穩定。6樹種樹高平均生長量為0．4518±0．2763m，刺槐的最高，側柏的最低；連年生長量平均值為0．3190±0．1358m，刺槐的最高，鬍頹子的最低。6樹種胸徑平均生長量相對穩定，平均生長量為0．4170±0．1714cm，刺槐的最高，是側柏的3倍多，闊葉樹大于針葉樹，實生林的較高；胸徑連年生長量平均值為0．3723±0．1205cm，油鬆的最大，側柏的最小；隨著年齡的增長，材積平均生長量和連年生長量都呈逐漸增加的趨勢，6樹種材積平均生長量平均值為3．1254×10^4±4．8827×10^-4m^3，刺槐的最大，側柏的最小，二者相差20倍左右；材積連年生長量平均值為6．8956×10^4±10．1233×10^-4m^3，刺槐分彆是油鬆和側柏的2．38和15．34倍。生長量大小除遺傳因素外，主要是降水量的影響。
본문대황토고원중부유송、측백、자괴、사극、호퇴자화화거수등향토수충수고、흉경급재적생장량진행료측정，결과표명：연구구수고생장곡선분량충류형，이유송、측백등인공실생림위일충류형，즉만족“만일쾌일완만일은강”생장규률，사극、화거수등맹얼림개시생장교쾌，지후축점강저병추우은정。6수충수고평균생장량위0．4518±0．2763m，자괴적최고，측백적최저；련년생장량평균치위0．3190±0．1358m，자괴적최고，호퇴자적최저。6수충흉경평균생장량상대은정，평균생장량위0．4170±0．1714cm，자괴적최고，시측백적3배다，활협수대우침협수，실생림적교고；흉경련년생장량평균치위0．3723±0．1205cm，유송적최대，측백적최소；수착년령적증장，재적평균생장량화련년생장량도정축점증가적추세，6수충재적평균생장량평균치위3．1254×10^4±4．8827×10^-4m^3，자괴적최대，측백적최소，이자상차20배좌우；재적련년생장량평균치위6．8956×10^4±10．1233×10^-4m^3，자괴분별시유송화측백적2．38화15．34배。생장량대소제유전인소외，주요시강수량적영향。
In the middle part of the Loess Plateau the curve of tree＇ s height growth can be grouped into two categories, i.e. those following the common pattern of （Slow-rapid-slow-stable drop down）such as Chinese pine and oriental arborvitae plantation, seabuckthorn and Rhus typhina sprouted stands grow up rapidly in the beginning, and then gradually decrease the growth and approach to sta- bilization. Chinese pine, oriental arborvitae, black locust, thorny elaeagnus, seabuckthorn and Rhus typhina average annual growth in height is 0. 4518±0. 2763 meters, the black locust is the highest, the oriental arborvitae is the lowest. The average current annual growth in height of the above-mentioned six trees is 0. 3190±0. 1358 meters, the black locust is the highest, the thorny elaeagnus is the lowest. The average annual growth in diameter at breast height of the 6 species is relatively stable, it is 0. 4170±0. 1714cm, the black locust is the highest, about 3 times of the oriental arborvitae, the broad-leaved trees in higher than the needle-leaved trees, and seedling forest is rather high. The mean current annual growth in diameter at breast height of the 6 species is 0. 3723±0. 1205 cm, the Chinese pine is the maximum, and the oriental arborvitae is the minimum among them. Along with the prelon- gation in ages of the six species, their cumulative timber volume both average annual growth and current annual growth have a trend of increase. The average annual volume growth of the six species is 3. 125× 10^-4 ±4. 8827 × 10^-4m^3, the black locust is the maximum and the oriental arborvitae is the minimum among them, there is about 20 times between the maximum and the minimum. The average current annual volume growth of the six species is 6. 8956× 10^-4±10. 1233 × 10^-4 m^3, the black locust is respectively 2. 38 times and 15.34 times the Chinese pine and the oriental arborvitae. The process of different tree species is different, which is mainly influenced by the amount of precipitation.
