共 29 条
- [26] SOULIDES D. A., 1961, SOIL SCI, V91, P291, DOI 10.1097/00010694-196105000-00001
- [27] STEVENSON I. L., 1956, Plant and Soil, V8, P170, DOI 10.1007/BF01398818
- [28] PRESERVATION OF NATURAL DIVERSITY - PROBLEM OF EXTINCTION PRONE SPECIES [J]. BIOSCIENCE, 1974, 24 (12) : 715 - 722